Line strength, measured in pounds, indicates the amount of force a fishing line can withstand before breaking. For trout fishing, selecting an appropriate line strength is crucial for success. An example of this consideration is choosing a line that is strong enough to handle the average size trout in a given stream but fine enough to avoid spooking the fish.
The correct line strength offers a balance between breaking resistance and presentation. A line that’s too strong can be visible to trout, leading to refusals. Conversely, a line that’s too weak increases the risk of losing fish, especially larger specimens or in areas with heavy cover. Historically, anglers have experimented with various materials and strengths to optimize their trout fishing.